Sewing-machine.



J. T. HOGAN. SEWING MACHINE. APPLICATION FILED Nov. 5, 1908.

Patented 0011.5

1909. s SHEETS-SHEET 1.

INVENTOR ATTORNEYS J. T. HOGAN. SEWING MAGHINE. APPLICATION IILIzD Nov.5j 190'8.

8 SHEETS-SHEET 2.

lNvENoR BY Y i@ ATTORNEYS* l .Patented 001;.5,1909.

J,T.H0GAN.

SEWING MACHINE.

J. T. HOGAN.' SEWING MAGHINE. APPLICATION FILED `,NOV. 5, 1908.

Patented 0Gt.5,1909.

J. T. HOGAN. SEWING MACHINE. APP-LIOATIONHLBD Nov. s, 190s.

SHEETS-SHEET Patented Oct. 5, 1909.

'J,T.H0GAN. SEWING MACHINE. APPLICATION FILED NOV. 54, 1908.

Patented 001i. 5, 1909.

8 SHEETS-SHEET .T. T. HOGAN. SEWING MACHINE. fABPLIGAT'oN FI'LBDl Nov.5, 130s,

Patented Oct. 5, 1909.

a SHEETS-snm 7.

'wmv Es'sE's:

J. T. HOGAN.

SEWING MACHINE APPLICATION FILEDv Nov. 5, 1908.

Patented 0011.5, 1909.

8 SHEETS-SHEET 8.

JAMES T. HOGAN, uOTE JERSEY CITY, NEW JERSEY, ASSIGNO TO THE NATIONELLIACHINE COMPANY, OF MAMARONECK, NEW' YORK, A CORPORATION OF NEW YORK. i

SEVINGJJIACHINE.

To all whom ttonay concern:

lie it known that i, Jantes ',i. liooAN, a citizen of the lluited Statesof .\meriea, and a resident of Jersey (ity, oauity of lludson, State ofNew Jersey, have invented eertain` new and useful improvements inBewil|gM:teliincs, of which the 'following is a specification, referencebeing'hadl to the arcompan ving drawings, forming a part thereof.

My invention relates to sewing machines,

.ments as 'to reduce to a minimum the Wear thereof, and also to reducefriction of the moving parts so as to facilitate the easy running of thesame.

In carrying out. my intention, I provide means for feeding the workforward and backward in right lines, needle mechanism, and means forshifting the field of operation of the needle mechanism so as to producestitching on -eitherfside of the button hole at will, and at the end ofthe button hole inthe manner desired.

For forming barring stitches at the end of the button hole, I providemeans for lengthening the throw of the jogging movements of the needleupon opposite sides of a neutral line, the side stitching being arrangedto be carried out first upon one side of the neutral line and then :,-nthe other side thereof. itt thc time thebarring stitches are to be made,i move the na)vement-transmitting means to a neutral point with respectto a guide which is shifted to change the field of movements ofstitching from one side of the said neutral .line to the other.

AThis enables the shifting movement to be Specification of LettersPatent.V

Application led November 5, 1908.

itatented tiet. 5, i999.,

serial No. 461,122.

).'Iy invention also consists l.in certain novel feattnfes ofconstruction and. combi.

nation of parts, as will set forth.

in order that my invention may be thor oughlv uiulerstood` twill nowproceed to describe an embodiment thereof with reference to theaccompanying drawings illustrating the same, and will then point out thenovel features in claims.

n'the drawings, Figure l is a View in side elevation of a sewing machineembodying my invention. Fig. 2 is a top View thereof. Fig. 3 is a'top"t'iew partly in horizontal section and with the cover plate vvhichiii-closes certain mechanism in the over-hanging a rm. removed.l Fig. 4is a view in horizontal section .showing the top plate and partsthereon, the section being taken through the uprising part 0f theoverhang'ing arm. Fig. 5 is a bottom view of the machine. Fig. (i is adetail view in vertical longitudinal section through the base of themachine, the plane of section being` taken substantially upon the. line(SWG of Fig. it. Fig. 7 is a view in front elevation of the end of theoverhangng arm and parts contained there hereinafter be fully in,` thecover plate thereof being removed( Fig. S is a vieiv of the machine intransverse vertical sectiolnthe plane of such section being`transverselyv through the uprising portion of the overhanging arm of themachine. Fig. Q a View of certain parts illustrated in 3, the said partsincluding the means transmitting mowaucnts to, 'and controlling thenioveinents of, the vibrating gate which carries the needle bar, theparts in Fig. 9 being slu vn in different positions from that in whichthey are shown in Fig. 3. Fig. l0 is a detail view in transverse sectionof certain parts shown in Fig. 2", including the cam for producing thejogging movements of the needle for over-steaming stitches, thevibrating` member operated thereby, the guide and sector carried by saidvibrating member, the pinion for shifting the posi tions of the guide.vand certain other correlated parts. transverse section of the same.parts shown in Fig. 10, together with other correlated parts, the planeof section. being taken substantially7 upon the line t1--11 of Fig. 3.

Fig. l?. is a detail face view of two of theV cams em lo 7ed. tone/therwith certain cor- Fig. '11, shows a detail view inrelated parts. Figs.13 and 14 are face views of certain parts comprised in the means forcontrolling the tield of movements of the needle bar, said parts beingshown in one view in the position they will assume when the field ofmovements is adjusted for stitching upon one side of a button hole, andin the otherv view in the position they will assume when the field ofmovements isadjusted for stitching upon the other side of the buttonhole. F ig. 15 is a diagrammatic view illustrating the lines ofmovementsI of certain parts, the parts and movements being representedby lines and dots. Fig. 1G is a detail top view of certain parts of thecutter tripping mechanism, showing the same in the position in whichthey are shown in F ig. 3 but segregated from other parts of themachine. Fig. 17 is detail top view of the same parts showing them inother positions.

The machine comprises the usual bed 1 and overhanging arm 2. Mounted torotate in the overhanging arm 2 is the main shaft 3 driven by a suitablepulley or band wheel 4. From this drive shaft all the moving parts ofthe machine derive their power.

Beneath the base plate of the machine (see particularly Figs.` 5, (i and8) is a ratchet wheel 5 to which is imparted a step by step movement bymeans of a vibratingpawl-carrying plate (5 connected by means ofsuitable links and levers with an eccentric or crank arm 7 upon thedrive shaft 3. The said ratchet wheel is mounted to rotate with a stubshaft 8, and, rigidly secured to said ratchet wheel, whereby they willpositively rotate therewith, are cams 9, 10 and 11. The cams 10 and 11are formed in one piece, being face grooves in a member or disk l2, anda spring pressed band 13 surrounds the said member or disk 1Q, acting asa brake to prevent movements of the parts other than the movementspositively given thereto hy the feeding movements of the pawl carryingplate (3.

The cam 11 is substantially a heart-shaped cam with dwell portions, andis employed for the purpose of bringing about the feeding` movements ofthe work operated upon. rlhe work is supported by means of a work clamp14, the work supporting plate 15 of vwhich is secured to va plate16,-mounted to slide longitudinally iu guideways` 17 upon the base platel of the machine. rl`his sliding plate 1G is connected by means of alink 18 with a slotted arm 19, rigidly secured upon a rock shaft Q0. Theconnection of the link 1S with the arm 1S) being in the slotted portionthereof, adjustment is permitted to vary the throw of movement of thework plate and hence to regulate the extent of feeding movement impartedto the work. l'he rock shaft Q0 penetrates the bed plate of the machine,and is provided upon its under side with an arm 2.1,.the said armcarrying a cam follower which engages the heart-shaped cam groove 11above referred to. The shape of the cam is such as to give the work asteady and uniform movement first in one direction and then ih theother, with a slight dwell between the said reverse movements duringwhich time barring stitches may be accomplished at the extremities'ofthe button ho e.

The shaft 8 which carries the ratchet wheel 5 and the cams, extendsthrough the/base plate 1 of the machine to the other' side/thereof, andat its upper end is provided with an actuating ratchet wheel 22 adaptedto be manually operated by means of a pawl carrying hand lever 23. Bymeans of this hand lever the cams may be manually rotated vwhen desired,irrespective of the rotation of the driveshaft 3.

I wvill novv describe the parts relating to the means for transmittingvibratory or jogging movements to the needle to produce over-seemingstitches, and to the means for controlling and regulating the field andeX- tent of such moven'ients, so that the stitching may take place uponeither side of the central line of the button hole at will, and at theends of the button hole, the stitches at the ends of the button holebeing barring stitches of greater length than the side stitches ifdesired, such as are common in the form of button hole known assquare-end button holes.

The main shaft 3 is provided with a bevel gear wheel 24, arranged inmesh W-ith another bevel gear wheel Q5 mounted upon a vertical stud QGsecured to a stationary part located in the hollow arm 22, the axis ofthe stud disposed at right angles to the axis of the shaft 3. Fast tothe bevel gear Wheel 25 is a cam 2S, which I will term hereinafter thevibratory cam. This cam is the one which imparts the jogging orvibrating movements to the needle bar to produce the over-seamnfvstitches required. A Aplate or member 29 is located upon a stationaryplate 2T, being pivoted thereto by means of a pivotal stud 30. The plateor member 29 is provided with a downwardly projecting stud 31 upon whichis mounted an anti-friction roller. The stud passes through an open slotin the plate 27, and is-received within the groove of the cam Q8. B ythis means the cam 28 in its rotation, is caused to impart a vibratoryor rotary reciprocating movement to the plate or member 29 about itspivotgBO. The vibrating plate or member 2f) carries a. guide piece 32,such guide piece being attached to the plate or member by means of ascrew 33 which forms a pivot for the guide piece 552 upon the same. Atits opposite ends the guide piece is provided with gear teeth B4-constituting a gear sector, the renter of which is concentric with theaxial center 33. The pitch line of the gear machine needle bars.

axis of the pivot 30.

er small gear wheel 35, mounted upon a stationary axis 3G, is disposedwithits teeth in mesh with the teeth of the gear sector 34. Secured tothis gear wheel is a small pinion 37, the teeth of which are in meshwith the teeth of a sector 38 rigidly mounted upon a vertical shaft 39.The vertical shaft 39 passes down. through the uprising portion of theoverhanging arm 2 to a pointbeneath the base ofthe machine, beingprovided at its lower end with an arm ait), the said arm carryingI astud and roller 4l, constituting a cam follower', tor the aforesaid cam10. Rotation of the cam 10 will produce at in'-v tervals a rocking ot'the shaft 39Jand consequently a movement of the sector 38. This willtransmit movements through the pinion 37 and small gear wheel to theguide piece 32, shifting the position of the same with respect to thevibrating plate or member 29', upon which it is mounted. This shiftingmovement will be an movement entirely independent ot the vibratingmovement which it derives from its connection with the plate 2f), and itwill be noted that the two movements in no way interfere with eachother, its vibrating movement with the plate 2S) merely causing thesector 3l to rolll around the gear wheel 35, aml the movement of thegear wheel 35 having no tendency t'o impart any movement to the plate2S) because of the fact that the pitch lines of the gear wheel and thesector 3ft are both intersected by the axis o'l`A the pivot 30 uponwhich the plate 2t) is mounted.

The guide-piece constitutcs a support Yt'or a slide 42 mounted thereonand engaged to move with respect thereto toward and away from the axisof the pivot i555. 'lhis slide is connected pivotally to one end ot' alink iii. the other end ol' which is pivoted to a vibrating arm il,oivotcd at -lto a stalionar)v portion ot' the arm el' the machine. rl`hearm -l-t is :uljustably connected by inc-ans ot a link lo with an arm-tT secured to, or formed as a part oli, the needle bar gate. rl`heneedle bar gate is pivotcd upon centers 4S, the needle har -iti carriedthereby partaking of the swinging movements ot' the gate, but havingalso the nece-sar)Y longitudinally reciprocating movementsconnnou tosewing teeth Bat is co-incident at one pointl with the By means ot thelink and lever connections just. explained. any movement given to theslide i2, lengthwise ot the horizontal portion ot theoverhanging arm ofthe machine, will transmit a corresponding movement to the. needle gateat about right angles thereof. Movements of this character are movementssulistantially longitudinal of the link 43, and hence vibratory.movements of the vibrating arm 44. Such movements are -tlie guide pieceB2.

transmitted through the link 4G to the arm' l? ot the gate, and, as thepivotal connection between the link '-lt and the arln 4T of the gate isat about right angles to the position ot the needle bar in the gate,such movements, in being transmitted to. the'gate, are 'transmitted atlsubstantially right angles thereto and hence transverse of a linelongitudinally through the horizontal portion of the arm. By referenceto the view of the machine shown in Fig. il, it will be seen that theclothclamp. and other parts are so disposed as to support the work forthe making ot button holes withltheir central ,lines longitudinal withrespect to the overhanging arm of the machine, and hence the joggingmovements above described with reference to that portion of the gateholding the needle har, will be transverseof such a line as will be wellunderstood. The proportion of movement transmitted from the slide to theneedle bar may be regulated by manual adjustment otl the lever t6 alongthe slotted portion of the vibrating arm alf-lf, such adjustment beingmade, however, before the comn'iencement of the work and remaining thesame during any one complete operation ot.' producing a button hole.lVith this link properly adjusted before the machine commences tooperate,` variations-in the length ol Istitch will only be ell'ectedduring the running ot the machine by a change ot' posit-ion ot' theslide l) with respect to the pivotal center -I-i ot the `guide piece2f).

The position of the slide 4-2 in the guideway ot' the guide piece Iii).is controlled by means olf a lever :30 disposed immediately above thelink i?, being pivoted at 51 to a stationary point and engaging ascrewconnected with. the slide by means of a slotted portion 52. intermediateits ends the lever 5o is connected by means of a link 53 with an arm .ilseciu'ed upon a vertical shaft 55. The vertical shaft 55 extendsdownward through the uprising arnrof the machine, prnetratinf;` the baseot the machine to the under yside thereof, and` beneath the base, isprovided with an arm 5o. This arm bears against the periph-ery ot thecam 5) which I will hereinafter ret'er to as the barring cam. Thebarring cam. in the present example of in v invention. hasI twooppositely disposed projections. il'hen these projections engage the armTiti. the shaft 55 is rotated to an extent sutlicient to draw the slide42 downto a position opposite to, and substantially concentric with, theaxial center of At this point a sutticient range ol jogging movement isimparted to the guide to transmit movements to the needle bar sutlicientfor barring stitches.

In order that the somewhat peculiar' relationship of the movements ofthevibrating plate or member 29 and'the guide piece 32 be made plain, I'will now ref to the diagrammatic view Fig. l5, 1n which the movementsot the parts are made clear by eliminating the eontusion arising 'fromtheir shape, form and contigui-ation. In this 'view ai represents a linecentrally through the gear wheel and pinionv 36, the' pivotal center 30of the vibrating plate 2S), and through the'pivotal center 33 of theguide piece 232 upon the vibrating plate 29, `when the said vibratingplate is in a position intermediate the eXtreme pointsof its throw ineither direction. T he pivotal center 30 is shown bya dot or point, asis also the pivotal center--B. The straight heavy line between thepoints 3() and 33 is employed to represeiit the vibrating plate ormember 2f), the broken lines .fr o representing the eX- treme limit otthrow ot the said vibrating plate or member 25.) about its'pivotalreenter il() under the intluenee of thel vibratory (fain o and ddesignate the positions of the point 33 at such times. 'lfhe guide pieceis represented by a single straight line 32, which is shown as out olline with the line 29, having been moved to the left hand side thereotlaround its pivotal axis, and the sector portion thereof is representedby an are e constituting the pitch line of said sector.

The line e will be seen to' engage at onepoint the line f, whichrepresents the pitch line ot the gear wheel 35. As the vibrating plateor member 2.() swings to a position represented by the line a., theguide piece 32 will assume a position represented by the broken line g,the arc e rolling upon the circumferenee f until it assumes a position7L; While, when the vibrating plate or member 29 moves to a positionrepresented bythe line b, the guide piece 32 will move to a positionrepresented by the broken line z', the arc e at this time assuming theposition The slide 42 is shown with its center upon a point along theline 32, and it will be apparent that, as the vibrating member vibratesbackward and forward between the lines a and b', the point le willvibrate backward and 't'orward between the points Z and m along thebroken lines f/ and i.

Besides assuming that the line represents the (central linel oftheparts, as above stated, the said line may also be taken to representthe central line of the button hole, beeause all vibratoryn'iovenuentsof the slide At in a direetiouat right. angles to the line a' f aretransmitted-proportionately to the needle bar in positions having thesame proportionate relative positions to the central line o'l the buttonhole. The movement ofthe point between the two points Z and 'no willthen represent side stitches upon one side ot the ventral line a' ai otthe button hole.

ly operation of the gear wheel 15 under :u :tuation ot the eain lt), theguide piece 532 is shitted from one side to the other ot the y centra llinel ai .1.3, rlhe broken line n. indieates the position of the centralline ot the guide lpiece 32 when thrown into a position upon the otherside ol" the ventral line a: a; to prof duce'the other set. ot' side stitehes. 'lhe point o designates the position of the guide piece 42 uponthe line n corresponding to the po,-

'sitio'n upon the line 32, while the points p and g reln'esent. therange of movement of the point o during the vibration of the plate ormember 25). rllie distance between p and q will then represent the sidestitches upon the opposite side of the button hole to the side stitchesrepresented by the points 7, and m. The direction ol feed oit' the workplate being in the longitudinal line ot' the buttonv hole represented bythe line .fr a2, side stitches will be produeed t'roin end to end of thebutton hole as the work is moved in one direetion or the other, theshilt oil5 the guide piece 'from one side. ot' the eentral line to theother being etleeted while the work is in a position with the end ot thebutton hole at a/point in line, with the' needle bar. lVhen either endof the button hole has been reached, bai-ring stitches may be made, and'li'or this purpose vthe eam t) will operate to throwthe slide 42 downto a position with its central point substantially (7o-incidentrepresentingl barring stitches equidistantA upon opposite sides oi thecentral line w' ac. Such barriiig stitches may be conveniently formed atboth ends of the button hole, and for this reason the cam 9 is providedwith twoprojections oppositely disposed,a single revolution ot' the saidCam and ratchet to which it is secured, constituting a movementsufficient to complete one button hole.

It will be noted that, when the slide 42 is over the axial center 3?,movement of the guide piece 32 upon the vibrating plate, being amovement around the axis 33, willimpart no movement to the slide 42, theonly movement imparted thereto being the regular vibrating movement ofthe plate 29 under the iiifiuenee of the cam 28. vFor this reason theeain 1l may have very gradual change portions, the entire time occupiedin barring being, it desired, occupied in moving the guide piece 32 fromits position upon one side of the line to its position upon the other.This arrangement` enables the machine to be run at a high rate of Speedand saves wear and tear on the parts due to shock arising from inertiaand'inoinentum.

It. will also be seen that the machine may be very easily adapted forthe purpose of nialting round end button holes, if desired, instead olsquare end lnitton holes.

ln Fig. 3 of the drawings the parts aie shown in the position which theyassume when stitching is being carried out on (say) the lel'thand sideof the button hole, such as sol iis

stitches.

is represented by the space between the points l and 1nrv of the diagramFig, 15.

ln Fig. l) the slide if.) is shown as moved down to the position in the,Q'uide piece t'or transmitting' movements suitable for Yhen in thisposition barring' movements are made such as is represented on thediagram between points r' and rl.

in Fie'. lili, the guide is shown as thrown over to the oppositeposition. in which position stitching' will take place ou (say) theright hand side of the button hole, the same parts' shown in Fig. llbeinp'shown in Fig. 13 in the tirstdescribed position, such positioncorres]lendingl to the position in which the partis aie shown in Fig'.3. Earring may take place while the parts' are in the posi' tion showneither in Fig'. 12E' or in Fig. li, for, as above set forth, therelative position of the guide upon the vibratingV plate or member doesnot. materially.attectitlie movement transmitted when the slide has beenmoved down 'to barring position,

F or the purpose of making round end button holes it is only necessaryto prevent the cam 9 from operating to shittthe slide down to itsbarring' position. This maybe effected in alnumber of ways, but lorpurposes of simplicity of illustration, have shown the arm 54 as securedtothe shaft 55 by means' of a set screw Il?, by unscrewing which thesaid arm will be released l'rom itsl engagement with the shaft, and lhave provided tlvy arm 5l with a pin 5o which by engagement with astationary part of the machine may be employed to hold the said arm inits propel' position to correctly locate the slide l2. lilith the slidel2 having' no movement along;l the guidetoward and away from its axialcenter the cam ll, which controls the lield ot the over-scathing'stitchi ing; operalions upon opposite sides ot' the button hole. willcarry the said f'eld of move: ments gradually, from one side to theother at the end ot the button liole.inaltin;i' a round4 end buttonhole`r as desired` and other shaped button holes may, ol course. be madein accordance with the shape ol' the cam employed.

Mounted to slide transversely in a {roow in the plate 2T is a bar 5i),said bar provided with z stud (it) upon which is mounted a block (il.This bloei; is received within a slotted 'portion ol' the plate ormember tl, and, by reason of this connection, said bar 5t) is caused toreciprocate :it all timesl the said plate or member 2f) is vibrated.Near one end the bar is provided `with an uprisingr stud (52, which isarranged eoutiggjuons l to, andis adapted-at certain times to engagewith. a notch (lil in a bar (3leoinprising a portion of the cutter controlling' mechanism. This bar is pivoted at (SI2 to a lezer E313., saidlever in turn pivoirll at lli' to a stationary point on the plattlbarring toward a tripping latch Tt).

connected with the bar tt, near its pivotalpointttltendstopullthebarol-longitudinally in one direction and to rochthe lever (SG upon its pivotal center (3T, and another coil spring' tt)attached to the bar (it near its opposite end tends to draw the barlaterally TheI tripping latch Tt) ordinarily holds the bar (il in suchaposition as to prevent the notch (Sil thereof 'from engaging' the stud(32 upon the transverse bar .'fi. moved to its tripping position, as itmay be by operation or' a cam piece Tl secured upon the rate-het wheel Wsaid cam piece acting through a lever T2 and a vertical rod 73, the.

bar tS-l willbe permitted to move inward under tension of the springy(it) so as to be engaged by the stud @when the same is opposite thenotch (33. Then this happens, the bar (it, upon the nextreciprocating-movement of the constantly reciprocating transverse bar59, will be carried b; ck therewith, such n'iovement of the har (54-having the eli'ect of rocking the lever Gti upon its piyF otal center6T. The lever (36 is pivotally connected .to a cutter' controllingc bar83, the cutter being caused to operate upon the nent successive downwardmovement of the needle bar after the said bar has been tripped, and thetripping thereof is produced by the aforesaid movement of the lever Gtwhen the saine is rocked upon its pivotal center (31' by the movement ofthe bar (il.

i will not describe the. operation of the. euttin` mechanism with anyfurther particularity herein, because no claim is made to the saineipcrse, the mechanism being substantially such as is shown in Patent No.402,61() to Osterhout Ss Hailenbeck, dated May 7th, 188i), for cuttingdevice for buttonhole sewing' machines.

The arm 5l is shown as provided with a cam plate 7l, which engages withthe lower end ot the central stud 75 of a tension device Tt, wheneverthe arm 54 is moved to a barring position. This will release the tensiono1" the thread at such times as barring' .stitches are being made. havealso shown means in a lever 7T, adapted to be actuated b v a projectionTo upon the stop motion arm Til. l'or releasing the tension atV themoment the machine is' stopped. This stop motion, which may be oi' anysuitable kind such as are well l nown and are on the market today, istripped by means otl a pin Si) propm or projection being arranged tostrike a. lever Si, said lever controlling the position ot a rod S2eom'iected with the said stop motion arm 79.

While the particular 't'orm of' sto1')motioh if; not essential iu thepresent application, a detailed description oi the forni herein illuStrated ma v be t'ound in lf. Letters Patent.,

` ieee..

jet-tinge trom the cam member l2, the said `When this tripping' latch isWhat I claim ist A 'imparting relative jogging movements between thework support and the needle bar comprising a plate or member arranged tot vibrate about an axis, means :tor imparting a constant .and uniformvibration thereto, movement transmitting means including a slide .and aguide piece therefor supported uponsaid plate or member, means formoving the slide upon the guide piece toward and away from the axis ofthe plate or member so as to vary the amplitude of movements transmittedthereby, and means for moving the guide piece llaterally with respect tothe plate or member` to vary the field of the shorter vibratingmovements transmitted by the slide carried thereby, the relativemovements permitted between the guide piece and. the plate or memberbeing such as not to affect the field of movements transmitted by theslide when in a position to transmit the said movements of greateramplitude.

A sewing machine including means for imparting relative jogging orlateral movements between the Work and the needle bar in the formationof over-seaming stitches, said 'means eomprisinga vibrating plate ormember, a guide piece pivotally carried upon the plate or member,- andmovement transmitting means including -a slide mounted upon said guidepiece,-means for moving the guide With respect to the vibrating plate ormember to change the field of lateral or jogging movements transmittedby the guide thereon Without necessarily changing the amplitude ofmovement transmitted thereby, and means :t'or moving said slide uponsaid `guide to vary the amplitude of the lateral or i jogging movementstransmitted thereby, the last said movement being to a pointsubstantially neutral with respect to the movement of theguide pieceupon the member carrying it, so that relative movements between theguide piece and the, member carrying it dui'- iiig the transmission 4ofthe jogging movements of said greater amplitude will not af.- i'ect orvary the iield or' movement of said lateral or jogging movements oigreater amplitude.

A sewing machine including means tor imparting relative joggingmovements between the work support and the needle bar comprising a plateor member arranged to vibrate about an axis, a guide piece pivoted uponsaid plate or member, the axis of said pivot being eccentric of the axisof vibration of the plate or member, movement transmitting means forimparting said relative jogging movements, including a slide mountedupon said-guide, lmeans for moving said slide. upon said guide towardand away trom the pivotal axis ot the said plate. or member to var)l theamplitiule of jogging l means for rocking the guideway upon its pivotalaxis with respect to the plate or member upon which it is mounted tovary j t-he lield ot movements transmitted by the slide mounted thereon.

4. A sewing machine including means for tween the work support and theneedle bar comprising a plate or member arranged to vibrate about anaxis, means for imparting a` constant range or vibration to said plateor member about its axis, a guide piece pivoted upon said plate ormember, the axis of said pivot being eccentric of the axis of vibrationoft' the plate or member, movement transn'iitting means for impartingsaid relative jogging movements, including a slide ing said slide uponsaid' guide toward and away from the axis of tne said plate or meinberto vary the amplitude of jogging movements transmitted by the slide,gear teeth upon said guide piece arranged concentrically of the axisthereof, and with their pitch line intersecting the axis of the plateormember,

o t said guide piece, the pitch line ot the teeth otsaid gear alsoliiitei'secting the pivotal axis of said vibrating plate or member.

5. In a sewing machine, the combination with stitch forming mechanismincluding a vertically reciprocating and laterally vibrating needle bar,of means for transmitting the vibratory movements to the needle barcomprising a pivoted member, means for transmitting a constant range ofvibration thereto, a guide piece laterally adjustable thereon whichpartakes of the movement of the said vibrating member, an elementconnecting the said guide piece with the sziid needle bar, means forshitting the position ot' the guide without thereby shifting theposition oi the said connecting element with respect to the said pivotedmember, and means tor moving the connecting element along the guidepiece toward and away from the axis of the pivotcd member.

(.k A sewing machine including means tor imparting relative joggingmovements besaid means comprising a pivoted plate or member, means forimparting a constant range of vibration to said plate oi member aboutits pivotal axis, a guide piece secured including a slide upon saidguide piece, said slide arranged to be moved upon said guide piecetoward and away Jfrom the pivotal ccnter ot tlie plate or member,whereby the range ot lateral movemei'its transmitted by the slide willbe varied. and means vtor latorally adjusting thc position o'll tlieguide imparting relative jogging movements bemounted upon said guide,means for mov-- and a gear having teeth engaging theteeth,

piece upon-the pivoted vibrating member tween the worli support and theneedle bar,`

upon the plate or member to one side of its. pivotal axis, movementtransmitting -means piece' and slide with respect to the plate or memberto vary vthe tield ot' the jogging movementsy transmitted by the slide.

7. A sewing mael'iine including means tor imparting relative lioggingmovements between the work support and the needle bar, said meanscoi'nprising a pivoted plate or member, means tor imparting a constantrange ot' vibration to said plattI or mem ber about its pivotal axis, aguide piet-e pivoted upon said member at' a. point ccwnnric of thepivotal axis ot' said plate or member, niovement transmitting mean.`including a slide upon said guide piece, means Ytor moving said slidebackward and forward along the guide piece in a direction from one saidpivotal center to the other and vice versa, the range otlateralmovements transmitted by the slide being thereby varied, and means foradjusting thc guide with respect to the plate or member7 about thepivotal axis of said guide, thereby laterally adjusting the field ofmovements tansmitted by the said slide.

8. A sewing machine including means for imparting relative joggingmovements bctween the work support and the needle bar, said means,comprising a pivoted plate or member, a cam for imparting a constantrange of vibration thereto about its pivotal axis, a guide piecepivotally secured upon said plate or member to one side of the pivotalaxis thereof, a slide upon said guide piece for transmitting the saidrelative jogging movements, a cam, and connections therefrom to saidslide to move same along said guide piece to vary the amplitude ot'jogging movements transmitted thereby, and a, cam and connectionstherefrom to said guide piece for varying the position ot said guidepiece about its pivotal axis upon the plate or member to vary the tieldof the said relative jogging movements transmitted by the slide.

9. In a buttonhole sewing machinej the combination .with stitch forming`mechanism including a vertically reciprocating and lat-- e allyvibrating needle bar, ot a vibratingl plate or member tor imparting saidlateral vibratil'ig movements to the needle bar, a pivotal supporttherefor which stationary during the. normal stitching operation tor theproduction ot' a con'iplete buttonhole. meansI for imparting a constantlrange ol" vibration tosaid plate or membe* about its pivotal axis, aguide piece upon the plate or member arranged to partake of themovements thereof, a slide upon said guide piece, moans connecting saidslide with said needle bar, means tor moving said slide upon said guidepiece in a direction towardand away trom the pivotal center ot the ysaid'plate or member wberelrv the amplitude otl latrral movementstransmitted by tlnl slide will be varied between a degree sutiicicnt toproduce side stitches and a degree sutticient to produce end barringstitches, and means for laterally adjusting the position ot the guidepiece with respect to the said plate or member while thcslide in aposition wherein movements for pii'l'iducing barring stitches are beingtransmitted. without thereby laterally shitting the position olf thesaid slide with respect to the vibrating plate or member.

lt). in a button hole sewing machine, the combination with stitchforming mechanism including a vertically7 reciprocating and laterallyvibrating needle bar, `of a vibrating` plate or member tor impartingsaid lateral vibrating movements to the needle bar,`

means tor imparting a constant range ot' vi bration to said plate ormember about its pivotal axis.- a guide piece pivotallv mounted uponsaid member to one side ot the pivotal axis thereof, said guide piecearranged normally to partake ot the movements ot' said plate or member.a slide upon said guide piece. means connecting' the needle bar `withsaid slide. means for moving the slide backward and forward between thepivotal ccnt'er ot the guide piece and the pivotal center ot' thc plateor member to vary the amplitude ot lateral movements transmitted by theslide, and means for adjusting the position of th'e guide piece upon theplate or member about the pivotal axis of thc said guide piece to varythe field ot' movements imparted bv the slide carried thereby when theslide is at any point between the two said pivotal axes. A

ll. In a button hole sewing machine the combination with stitch formingmechanism including a vertically recipr ^zcating and laterally vibratingneedle bar. ot a vibrating.

plate or member for imparting said lateral vibrating movements to theneedle ar. means for imparting a constant rauwe ot' vibration to saidplate or membe about its pivotal ax. i. a guide piece pivotallv mountedupon said member to one side ot' the pivotal axis thcrcot'. said guidepiece arranged normalbY to parlato: ot the movementsy :it `said plate ormember. a slide upon said guide piece. meansconncctingthcneedle bar withsaid slide, means t'or moving the slide backward and lorward between thcpivotal center ot the guide piece and the pivotal center otE the plateor member to var v tln` :unplitude ol: lateral lnovtanents transmittedby the slide. and means tor adjusting the position oi' the guide pieceupon the plate or member about the pivotal axisA ot' the said guidepiece to var v the tield oll movcmcnt-s` imparted by the slide carriedthcrebjr when tln` slide is at any point between the two .sait pivotalaxes. said tast named meanscomprisinggear teeth carried bv the guide.and a gear having teeth intcrmcsliing tlnrcvv ith. the pitch iinns nt`aid i 'te teeth being substantially coincident at one point with theaxis of the vibrating ,plate or member.

12. In a button hole sewing machine, the

said plate or member, said guide piece provided With gear teeth 34, agear vwheel 35 in mesh With said gear teeth 34, means for impartingrotative movement to said gear Wheel in the operation of the machine, a

slide 42 in said guide piece, means for moving said slide along saidguideway in the operation of the machine, and connecting means betweenthe said guide piece 42 and the needle bar whereby thevibratingmovements imparted to said slide by said cam will be impartedto said'needle bar to produce the laterally vibrating orjeggingmovements thereof.

13. In a button hole sewing machine, the combination with stitch formingmechanism including a vertically reciprocating and laterally vibratingneedle bar of a plate or member arranged to vibrate/about a verticalaxis, a horizontal guide piece vertically pivoted upon said plate ormen'iber, a slide in said guidepiece, means connecting said slidelaterally with said needle bar, a cam arranged to rotate about avertical axis, a vertical shaft having an arm at one end engaglng saidcam, and at the other end havlng an arm connected With said slide,Whereby the operation of said cam Will, through the intermediation ofsaid vertical shaft, move said slide along said guide, another camsecured to rotate with the lirst said caln, a vertical shaft having anarm engaging said last named cam, and provided ivith means alt its otherend engaging said guide piece, whereby the cam, upon its movement, will,through the intermediation of said last named vertical shaft, move saidguide piece about its axis upon the member upon which it is vibrated.

14. A sewing machine including means for imparting relative joggingmovements between the work support and the needle bar comprising a plateor member' arranged to vibrate about an axis, movement transmittingmeans including a slide supported upon said plate or member, means formoving the slide upon the plate or member toward and away from the axisvthereof so as vtoV producev short jogging movements suitable for sidestitching, an ogging movements of greater amplitude suitable for barringstitches, means for laterally moving the slide With respect to the plateor member to vary the field or position oi. the said short joggingmovements suitable for side stitching, and means for disconnecting themeans for moving the slide along the guide from operative engagement, atwill, and for holding the slide in substantially one position in theguide, substantially as speciiied.

15. A button-hole sewing machine including means for imparting relativejogging movements between the work support and needle bar for the.production ot overseaming side stitches, mechanism for increasing theamplitude of the jogging movements for the production of barringstitches, field changing mechanism for shifting the fieldv ot' operationof the side stitches, and means whereby the same is operated during theformation of ctmsecutive barring stitches Without. thereby causing anycfnresponding change in the ptisition of the said barring stitches.

1G. A buttonholesewing machine including means for imparting relativejogging movei-nents between the Werl: support and needle bar. for theproduction of overseaming side stitches, eld changing mechanism forshifting the lield of operation of the si'de stitches, means forincreasing the amplitude 'of the said jogging movements to produce setsof end barring stitches, and means for operating the tield changingmechanism 'continuously during the production of substantially all ot aset' ot lsaid end barring stitches, to shift the field of operation ofthe sideI stitches from one side of the button'- hole to the other,without therebyy producing anyv corresponding lateral changes in theposition of the said end barring stitches.

JAMES T. HOGAN.

Witnesses:

l). How/nn) I'lAvwooo, LYMAN S. ANn1ucws,Jr.

